Heat Transfer Coefficient (U-value) converter
U-values in W/(m²·K) and BTU/(h·ft²·°F).
The U-value of a window, wall or heat exchanger is the heat flow per unit area per degree of temperature difference. Building codes in Europe quote W/(m²·K), while US codes use BTU/(h·ft²·°F). One US unit is about 5.678 metric units.
Result
1 W/(m²·K) = 0.1761101837 BTU/(h·ft²·°F)
Multiply the number of watts per square meter kelvin by 0.176110183682.
Results are rounded for display. Double-check values for critical work.
Popular heat transfer coefficient (u-value) conversions
All heat transfer coefficient (u-value) units
Watt per Square Meter KelvinW/(m²·K)
BTU per Hour Square Foot °FBTU/(h·ft²·°F)
Kilowatt per Square Meter KelvinkW/(m²·K)
Kilocalorie per Hour Square Meter °Ckcal/(h·m²·°C)
Watt per Square Centimeter KelvinW/(cm²·K)